var LastViewdItem = null;
  	function showMenu(menuId,parObject)
	{
                menu = document.getElementById("scrollmenu");
                submenu = document.getElementById("subMenu"+menuId);

                if(!document.layers)
                        topMenu = menu.style.marginTop.substr(0,menu.style.marginTop.length-2)*1;
                else
                        topMenu = menu.style.marginTop;


                hideMenu();
		if (submenu != null)
    	        {
                	submenu.style.visibility = "visible";
        		pos = parObject.offsetTop+topMenu+182;   //182
        		submenu.style.top = pos+'px';
                	LastViewdItem = submenu;
    	        }

	}

	function hideMenu()
	{
    	         if (LastViewdItem != null)
                 {
		    LastViewdItem.style.visibility = "hidden";
		 }

	}